Finding the Third Proportional to 68,730 and 146,146.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,730 : 146,146.50 = 146,146.50 : x
2. Step 2: Convert to fraction form
   68,730/146,146.50 = 146,146.50/x
3. Step 3: Cross multiply
   68,730x = 146,146.50 × 146,146.50
4. Step 4: Simplify right side
   68,730x = 21,358,799,462.25
5. Step 5: Solve for x
   x = 21,358,799,462.25/68,730
6. Step 6: Final answer
   x = 310,763.85